801dieselsc
New User
I have a ford 801 diesel which will run strong and smooth for about 30-60 minutes, then engine speed becomes erratic (for < 1 minute), then dies. Then it will not start. I disconnect the return line from the IP and engine starts, then let it run for a few seconds (only). This will "fix" the problem until the next time (about 30-60 minutes run time). From forum, i surmise i have a stuck metering valve, or disintegrated governor ring, or both. I did not find coffee grounds plugging the return fitting, but do remember coffee ground particles at pump exits in the past. The questions; 1-what is wrong? 2-if metering valve; can i service the metering valve with the pump mounted (just removing the covering plate)? 3- if governor ring; can i replace the governor ring (on the work bench)/ or rebuild the pump without calibrating the pump? or access to other sophisticated tools? Will the pump (and engine) operate ok without the flex ring? (given that the newer style doesn't have one) or do i at least need a spacer to fill the thickness of the governor ring?